无菌包装是软塑包装业中占很大份量的一类塑料包装，它是指在无菌的环境中把已杀菌的食品，包装在无菌的包装材料中，达到食品及包材均无菌的状态，能较长时间地保鲜食品。无菌包装可将食品和包材分别进行杀菌（无菌化处理），然后在无菌下包装操作；也可以先用包材把食品包装 Aseptic packaging is a large plastic packaging industry in a class of plastic packaging, which refers to the sterilized environment in the sterile food, packaging materials in aseptic packaging, food and packaging materials are reached The status of bacteria, can be a long time fresh food. Sterile packaging can be food and packaging materials were sterilized (sterile treatment), and then packaged under sterile operation; can also be used to package the food packaging